<dependency> <groupId>org.json4s</groupId> <artifactId>json4s-native_2.13</artifactId> <version>3.6.12</version> </dependency> String jsonString = "{\"name\":\"John\",\"age\":30}"; JsonNode jsonNode = JsonMethods.parse(jsonString); JsonObject jsonObject = new JsonObject(); jsonObject.addProperty("name", "John"); jsonObject.addProperty("age", 30); JsonMethods.print(jsonObject);